Charles h



(No Model.) '0' H. KELLOGG & J W. SHAVER.

1 Car Truck Frame.

- No. 239,510. Patented March 29,1881.

@Q QVQ v N. PETERS, PHDTO-HTHOGRAPNER, WASHINGTON. D, C.

NITED STATES PATENT OFFICE.

CHARLES H. KELLOGG AND JOHN W. SEAVEB, OF BUFFALO, NEW YORK, ASSIGNORSTO SA'ID KELLOGG.

CAR-TRUCK FRAME.

SPECIFICATION formipg part of Letters Patent No. 239,510, dated March29, 1881,

Application filed July 22, 1880.

' and JOHN W. SEAVER, both of Buffalo, in the county of Erie and Stateof New York, have made certain Improvements in Railroad-(lar- TruckFrames, of which the following is a specification.

This invention relates to metal car-truck frames, or those in which butlittle wood is used, and are mainly of metal, the object of theinvention being to construct a frame which will be lighter and stronger,at the same time employing a smaller number of parts or pieces than isnow generally used, and which will permanently keep the frame true,preventing its getting twisted out of square, (as is now frequently thecase.) This is one of the main objects of our invention; and theinvention consists in its construction, all as hereinafter fullyexplained.

In the drawings, Figure 1 is an end elevation 5 Fig. 2, a top plan andFig. 3, a detail,

" in perspective, of the bottom spring and corner- 5' form of the partswhich it unites.

plate.

A represents the'arch-bar, and B the trussbar, the two bolted together,and, in connection with the stretcher-bar F, forming one side frame of acar-truck frame.

O O are the cross-frames, either of wood or iron.- At each of the fourcorners, where the cross-fram esj oin the arch-bars, I insert betweenthe top of the cross-frames and the under side of the arch-bar a gussetor corner-plate, a a,

constructed (of metal) so as to adapt it to the These are very importantin such frames, for the purpose of keeping the car-truck frame insquarein other words, preventing the frame from getting wrenchedortwisted out of square, which is now frequently the case with thepresent constructions.

D is the spring, which may be a coiled, torsion, or other suitable kind.

bis a top spring-plate, which rests on the spring D, and is riveted orbolted to the under side of the spring-beam E. This spring-plate has ahole, 0, in the center, through which a headed bolt, d, passes, and alsothrough a bottom combined spring-plate and corner-plate, e, on which thespring rests. The bolt prevents the spring-beam E from canting orrising, and has a key or nut on the under side, to prevent it fromcoming through the plate. This spring-plate is of peculiar form.

(No model.)

It is nearly square; but the edges of two sides are bent up for aportion of their length to H set inside the cross-frame, to which theyare bolted or riveted, as in Fig. 1. The fiat part or front end, e, setsbetween the bottom of the cross-frame and the truss-bar B. This is togive a support or bearing for the spring, and they also act on thisportion of the frame as stay-pieces, the same as the gussets on theupper portion-that is, preventing the frame from getting out of square.

The center plate, G, is made with the sides f f projecting overthespring-beam E sufficiently to come in contact with top of crossframe0 in case the springs or spring-plate break or give way. Then thesesides would rest on the top of the cross-frames, thus preventing thespring-beam from falling through onto the track. This is an importantimprovement.

One of the advantages of this construction is, getting the maximum ofstrength by the employment of fewer pieces than are now generally used,making not only a lighter, stronger, and cheaper, but better, frame thanany we are acquainted with. This construction also admits of the entireframe being made of wrought-iron, thus doing away with numer-' ous smallcastings and bolts, which are liable to become cracked or broken, andwhich add arch-bars A A and cross-frames O G, all con-;

structed and arranged substantially as and for the purpose specified.

2. In a car-truck frame, the stay-pieces e e, constructed asdescribed,and in combination with the truss-bar B and cross-frame GO, as and forthe purpose specified.

In witness whereof we have hereunto signed our names in the presence oftwo subscribing witnesses.

O. HPKELLOGG. JOHN W. SEAVER.

Witnesses JAS. H. GARMIGHAEL, JAMES G. MULDooN.

